Answer: it's = 1
Step-by-step explanation:
<span>The y variable has the same coefficient so use elimination (subtract equations).
-2x = 8 - 6y
-(-15x = 21 - 6y)
------------------------
13x = -13 + 0
x = -1
Use this to find y in either equation. </span>
<span>-2(-1) = 8 - 6y
2 = 8 - 6y
2 - 8 = -6y
-6 = -6y
y = 1
(x,y) = (-1, 1)
</span>
Hello,
-2x+2y=8==>y=x+4(1)
The perdicular passing trought (4,-2) is
y+2=-1(x-4)==>y=-x+2(2)
The intersection is
(1)-(2)==>2x+2=0==>x=-1 and y=-1+4=3
Q=(-1,3)
P=(4,-2)
Distance PQ= √(( -1-4)²+(3+2)²)=√50=7,0710678...
Sub 2 for x in j(x) and evalueate
then sub that result for x in h(x)
j(2)=-2(2)
j(2)=-4
now sub-4 for x in h(x)
h(-4)=5(-4)-3
h(-4)=-20-3
h(-4)=-23
answer is -23
